makefs.c revision 1.59
1 /* $NetBSD: makefs.c,v 1.59 2024/10/27 18:35:52 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2001-2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Luke Mewburn for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #if HAVE_NBTOOL_CONFIG_H 39 #include "nbtool_config.h" 40 #endif 41 42 #include <sys/cdefs.h> 43 #if defined(__RCSID) && !defined(__lint) 44 __RCSID("$NetBSD: makefs.c,v 1.59 2024/10/27 18:35:52 christos Exp $"); 45 #endif /* !__lint */ 46 47 #include <assert.h> 48 #include <ctype.h> 49 #include <errno.h> 50 #include <limits.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <unistd.h> 55 #include <stdbool.h> 56 #include <util.h> 57 58 #include "makefs.h" 59 #include "mtree.h" 60 #include "cd9660.h" 61 62 /* 63 * list of supported file systems and dispatch functions 64 */ 65 typedef struct { 66 const char *type; 67 void (*prepare_options)(fsinfo_t *); 68 int (*parse_options)(const char *, fsinfo_t *); 69 void (*cleanup_options)(fsinfo_t *); 70 void (*make_fs)(const char *, const char *, fsnode *, 71 fsinfo_t *); 72 } fstype_t; 73 74 static fstype_t fstypes[] = { 75 #define ENTRY(name) { \ 76 # name, name ## _prep_opts, name ## _parse_opts, \ 77 name ## _cleanup_opts, name ## _makefs \ 78 } 79 ENTRY(ffs), 80 ENTRY(cd9660), 81 ENTRY(chfs), 82 ENTRY(v7fs), 83 ENTRY(msdos), 84 ENTRY(udf), 85 { .type = NULL }, 86 }; 87 88 u_int debug; 89 struct timespec start_time; 90 struct stat stampst; 91 92 static fstype_t *get_fstype(const char *); 93 static int get_tstamp(const char *, struct stat *); 94 static void usage(fstype_t *, fsinfo_t *) __dead; 95 static u_int parse_debug(char *); 96 97 int 98 main(int argc, char *argv[]) 99 { 100 struct timeval start; 101 fstype_t *fstype; 102 fsinfo_t fsoptions; 103 fsnode *root; 104 int ch, i; 105 size_t len; 106 char *specfile; 107 108 setprogname(argv[0]); 109 110 debug = 0; 111 if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL) 112 errx(EXIT_FAILURE, 113 "Unknown default fs type `%s'.", DEFAULT_FSTYPE); 114 115 /* set default fsoptions */ 116 (void)memset(&fsoptions, 0, sizeof(fsoptions)); 117 fsoptions.fd = -1; 118 fsoptions.sectorsize = -1; 119 120 if (fstype->prepare_options) 121 fstype->prepare_options(&fsoptions); 122 123 specfile = NULL; 124 #ifdef CLOCK_REALTIME 125 ch = clock_gettime(CLOCK_REALTIME, &start_time); 126 #else 127 ch = gettimeofday(&start, NULL); 128 start_time.tv_sec = start.tv_sec; 129 start_time.tv_nsec = start.tv_usec * 1000; 130 #endif 131 if (ch == -1) 132 err(EXIT_FAILURE, "Unable to get system time"); 133 134 135 while ((ch = getopt(argc, argv, "B:b:d:f:F:LM:m:N:O:o:rs:S:t:T:xZ")) != -1) { 136 switch (ch) { 137 138 case 'B': 139 if (strcmp(optarg, "be") == 0 || 140 strcmp(optarg, "4321") == 0 || 141 strcmp(optarg, "big") == 0) { 142 #if BYTE_ORDER == LITTLE_ENDIAN 143 fsoptions.needswap = 1; 144 #endif 145 } else if (strcmp(optarg, "le") == 0 || 146 strcmp(optarg, "1234") == 0 || 147 strcmp(optarg, "little") == 0) { 148 #if BYTE_ORDER == BIG_ENDIAN 149 fsoptions.needswap = 1; 150 #endif 151 } else { 152 warnx("Invalid endian `%s'.", optarg); 153 usage(fstype, &fsoptions); 154 } 155 break; 156 157 case 'b': 158 len = strlen(optarg) - 1; 159 if (optarg[len] == '%') { 160 optarg[len] = '\0'; 161 fsoptions.freeblockpc = (int) 162 strsuftoll("free block percentage", 163 optarg, 0, 99); 164 } else { 165 fsoptions.freeblocks = 166 strsuftoll("free blocks", 167 optarg, 0, LLONG_MAX); 168 } 169 break; 170 171 case 'd': 172 debug = parse_debug(optarg); 173 break; 174 175 case 'f': 176 len = strlen(optarg) - 1; 177 if (optarg[len] == '%') { 178 optarg[len] = '\0'; 179 fsoptions.freefilepc = (int) 180 strsuftoll("free file percentage", 181 optarg, 0, 99); 182 } else { 183 fsoptions.freefiles = 184 strsuftoll("free files", 185 optarg, 0, LLONG_MAX); 186 } 187 break; 188 189 case 'F': 190 specfile = optarg; 191 break; 192 193 case 'L': 194 fsoptions.follow = true; 195 break; 196 197 case 'M': 198 fsoptions.minsize = 199 strsuftoll("minimum size", optarg, 1LL, LLONG_MAX); 200 break; 201 202 case 'N': 203 if (! setup_getid(optarg)) 204 errx(EXIT_FAILURE, 205 "Unable to use user and group databases in `%s'", 206 optarg); 207 break; 208 209 case 'm': 210 fsoptions.maxsize = 211 strsuftoll("maximum size", optarg, 1LL, LLONG_MAX); 212 break; 213 214 case 'O': 215 fsoptions.offset = 216 strsuftoll("offset", optarg, 0LL, LLONG_MAX); 217 break; 218 219 case 'o': 220 { 221 char *p; 222 223 while ((p = strsep(&optarg, ",")) != NULL) { 224 if (*p == '\0') 225 errx(EXIT_FAILURE, "Empty option"); 226 if (! fstype->parse_options(p, &fsoptions)) 227 usage(fstype, &fsoptions); 228 } 229 break; 230 } 231 232 case 'r': 233 fsoptions.replace = 1; 234 break; 235 236 case 's': 237 fsoptions.minsize = fsoptions.maxsize = 238 strsuftoll("size", optarg, 1LL, LLONG_MAX); 239 break; 240 241 case 'S': 242 fsoptions.sectorsize = 243 (int)strsuftoll("sector size", optarg, 244 1LL, INT_MAX); 245 break; 246 247 case 't': 248 /* Check current one and cleanup if necessary. */ 249 if (fstype->cleanup_options) 250 fstype->cleanup_options(&fsoptions); 251 fsoptions.fs_specific = NULL; 252 if ((fstype = get_fstype(optarg)) == NULL) 253 errx(EXIT_FAILURE, 254 "Unknown fs type `%s'.", optarg); 255 fstype->prepare_options(&fsoptions); 256 break; 257 258 case 'T': 259 if (get_tstamp(optarg, &stampst) == -1) 260 errx(EXIT_FAILURE, 261 "Cannot get timestamp from `%s'", optarg); 262 break; 263 264 case 'x': 265 fsoptions.onlyspec++; 266 break; 267 268 case 'Z': 269 fsoptions.sparse = 1; 270 break; 271 272 case '?': 273 default: 274 usage(fstype, &fsoptions); 275 /* NOTREACHED */ 276 277 } 278 } 279 if (debug) { 280 printf("debug mask: 0x%08x\n", debug); 281 printf("start time: %ld.%ld, %s", 282 (long)start_time.tv_sec, (long)start_time.tv_nsec, 283 ctime(&start_time.tv_sec)); 284 } 285 argc -= optind; 286 argv += optind; 287 288 if (argc < 2) 289 usage(fstype, &fsoptions); 290 291 /* -x must be accompanied by -F */ 292 if (fsoptions.onlyspec != 0 && specfile == NULL) 293 errx(EXIT_FAILURE, "-x requires -F mtree-specfile."); 294 295 /* walk the tree */ 296 TIMER_START(start); 297 root = walk_dir(argv[1], ".", NULL, NULL, fsoptions.replace, 298 fsoptions.follow); 299 TIMER_RESULTS(start, "walk_dir"); 300 301 /* append extra directory */ 302 for (i = 2; i < argc; i++) { 303 struct stat sb; 304 if (stat(argv[i], &sb) == -1) 305 err(EXIT_FAILURE, "Can't stat `%s'", argv[i]); 306 if (!S_ISDIR(sb.st_mode)) 307 errx(EXIT_FAILURE, "%s: not a directory", argv[i]); 308 TIMER_START(start); 309 root = walk_dir(argv[i], ".", NULL, root, fsoptions.replace, 310 fsoptions.follow); 311 TIMER_RESULTS(start, "walk_dir2"); 312 } 313 314 if (specfile) { /* apply a specfile */ 315 TIMER_START(start); 316 apply_specfile(specfile, argv[1], root, fsoptions.onlyspec); 317 TIMER_RESULTS(start, "apply_specfile"); 318 } 319 320 if (debug & DEBUG_DUMP_FSNODES) { 321 printf("\nparent: %s\n", argv[1]); 322 dump_fsnodes(root); 323 putchar('\n'); 324 } 325 326 /* build the file system */ 327 TIMER_START(start); 328 fstype->make_fs(argv[0], argv[1], root, &fsoptions); 329 TIMER_RESULTS(start, "make_fs"); 330 331 free_fsnodes(root); 332 333 exit(EXIT_SUCCESS); 334 /* NOTREACHED */ 335 } 336 337 int 338 set_option(const option_t *options, const char *option, char *buf, size_t len) 339 { 340 char *var, *val; 341 int retval; 342 343 assert(option != NULL); 344 345 var = estrdup(option); 346 for (val = var; *val; val++) 347 if (*val == '=') { 348 *val++ = '\0'; 349 break; 350 } 351 retval = set_option_var(options, var, val, buf, len); 352 free(var); 353 return retval; 354 } 355 356 void 357 print_options(FILE *fp, const option_t *options) 358 { 359 for (size_t i = 0; options[i].name != NULL; i++) { 360 fprintf(fp, "%s=", options[i].name); 361 switch (options[i].type) { 362 case OPT_BOOL: 363 fputs(*(bool *)options[i].value ? "true\n" : "false\n", 364 fp); 365 break; 366 case OPT_STRARRAY: 367 case OPT_STRPTR: 368 case OPT_STRBUF: 369 fprintf(fp, "%s\n", *(const char **)options[i].value); 370 break; 371 case OPT_INT64: 372 fprintf(fp, "%" PRIu64 "\n", 373 *(uint64_t *)options[i].value); 374 break; 375 case OPT_INT32: 376 fprintf(fp, "%" PRIu32 "\n", 377 *(uint32_t *)options[i].value); 378 break; 379 case OPT_INT16: 380 fprintf(fp, "%" PRIu16 "\n", 381 *(uint16_t *)options[i].value); 382 break; 383 case OPT_INT8: 384 fprintf(fp, "%" PRIu8 "\n", 385 *(uint8_t *)options[i].value); 386 break; 387 default: 388 warnx("Unknown type %d in option %s", options[i].type, 389 options[i].name); 390 return; 391 } 392 } 393 } 394 395 int 396 set_option_var(const option_t *options, const char *var, const char *val, 397 char *buf, size_t len) 398 { 399 char *s; 400 size_t i; 401 402 #define NUM(type) \ 403 if (!*val) { \ 404 *(type *)options[i].value = 1; \ 405 break; \ 406 } \ 407 *(type *)options[i].value = (type)strsuftoll(options[i].desc, val, \ 408 options[i].minimum, options[i].maximum); break 409 410 for (i = 0; options[i].name != NULL; i++) { 411 if (var[1] == '\0') { 412 if (options[i].letter != var[0]) 413 continue; 414 } else if (strcmp(options[i].name, var) != 0) 415 continue; 416 switch (options[i].type) { 417 case OPT_BOOL: 418 *(bool *)options[i].value = 1; 419 break; 420 case OPT_STRARRAY: 421 strlcpy((void *)options[i].value, val, (size_t) 422 options[i].maximum); 423 break; 424 case OPT_STRPTR: 425 s = estrdup(val); 426 *(char **)options[i].value = s; 427 break; 428 case OPT_STRBUF: 429 if (buf == NULL) 430 abort(); 431 strlcpy(buf, val, len); 432 break; 433 case OPT_INT64: 434 NUM(uint64_t); 435 case OPT_INT32: 436 NUM(uint32_t); 437 case OPT_INT16: 438 NUM(uint16_t); 439 case OPT_INT8: 440 NUM(uint8_t); 441 default: 442 warnx("Unknown type %d in option %s", options[i].type, 443 val); 444 return 0; 445 } 446 return (int)i; 447 } 448 warnx("Unknown option `%s'", var); 449 return -1; 450 } 451 452 453 static fstype_t * 454 get_fstype(const char *type) 455 { 456 int i; 457 458 for (i = 0; fstypes[i].type != NULL; i++) 459 if (strcmp(fstypes[i].type, type) == 0) 460 return (&fstypes[i]); 461 return (NULL); 462 } 463 464 option_t * 465 copy_opts(const option_t *o) 466 { 467 size_t i; 468 for (i = 0; o[i].name; i++) 469 continue; 470 i++; 471 return memcpy(ecalloc(i, sizeof(*o)), o, i * sizeof(*o)); 472 } 473 474 static int 475 get_tstamp(const char *b, struct stat *st) 476 { 477 time_t when; 478 char *eb; 479 long long l; 480 481 if (stat(b, st) != -1) 482 return 0; 483 484 #ifndef HAVE_NBTOOL_CONFIG_H 485 errno = 0; 486 if ((when = parsedate(b, NULL, NULL)) == -1 && errno != 0) 487 #endif 488 { 489 errno = 0; 490 l = strtoll(b, &eb, 0); 491 if (b == eb || *eb || errno) 492 return -1; 493 when = (time_t)l; 494 } 495 496 st->st_ino = 1; 497 #if HAVE_STRUCT_STAT_BIRTHTIME 498 st->st_birthtime = 499 #endif 500 st->st_mtime = st->st_ctime = st->st_atime = when; 501 return 0; 502 } 503 504 static struct { 505 const char *n; 506 u_int v; 507 } nv[] = { 508 DEBUG_STRINGS 509 }; 510 511 static void 512 usage(fstype_t *fstype, fsinfo_t *fsoptions) 513 { 514 const char *prog; 515 516 prog = getprogname(); 517 fprintf(stderr, 518 "Usage: %s [-rxZ] [-B endian] [-b free-blocks] [-d debug-mask|comma-separated-option]\n" 519 "\t[-F mtree-specfile] [-f free-files] [-M minimum-size] [-m maximum-size]\n" 520 "\t[-N userdb-dir] [-O offset] [-o fs-options] [-S sector-size]\n" 521 "\t[-s image-size] [-T <timestamp/file>] [-t fs-type]" 522 " image-file directory [extra-directory ...]\n", 523 prog); 524 525 fprintf(stderr, "\nDebugging options:\n"); 526 for (size_t i = 0; i < __arraycount(nv); i++) 527 fprintf(stderr, "\t0x%8.8x\t%s\n", nv[i].v, nv[i].n); 528 529 if (fstype) { 530 size_t i; 531 option_t *o = fsoptions->fs_options; 532 533 fprintf(stderr, "\n%s specific options:\n", fstype->type); 534 for (i = 0; o[i].name != NULL; i++) 535 fprintf(stderr, "\t%c%c%20.20s\t%s\n", 536 o[i].letter ? o[i].letter : ' ', 537 o[i].letter ? ',' : ' ', 538 o[i].name, o[i].desc); 539 } 540 exit(EXIT_FAILURE); 541 } 542 543 544 static u_int 545 parse_debug(char *str) 546 { 547 char *ep; 548 u_int d; 549 size_t i; 550 551 errno = 0; 552 d = (u_int)strtoul(str, &ep, 0); 553 if (str != ep && !*ep && errno == 0) 554 return d; 555 d = 0; 556 for (char *a = strtok(str, ","); a != NULL; a = strtok(NULL, ",")) { 557 for (i = 0; i < __arraycount(nv); i++) 558 if (strcmp(nv[i].n, a) == 0) { 559 d |= nv[i].v; 560 break; 561 } 562 if (i == __arraycount(nv)) 563 errx(EXIT_FAILURE, "Unknown debug option `%s'", a); 564 } 565 return d; 566 } 567 568
Indexes created Wed Sep 24 05:09:52 GMT 2025